Its got nothing to do with dua, its got to do with you thinking about your past and getting sad over what missed and didn't have.
Men have difficulties in life too, they just don't talk about them as much as women. At the end of the day, although life gets difficult, and without hindsight it feels like life is closing in on you and everything feels cold and bitter, and you wish that you did something differently , but I am telling you, that everything that happened to you, when you look back on it, you will be happy you went through it, when you know how much reward it brings, I don't expect you to understand now, life is difficult I know, but a Muslim should always see the brightside of EVERYTHING, don't say if and but, If and but is from shaytaan, don't regret stuff like not going on holidays and other things you could have done, regretting the past is not going to help your present.
The Prophet Sallallahu alayhi wasalam had to witness all 6 of his children die, and he had to bury them with his own hands, that can leave major emotional damage on a person, and he went through grief and sadness, but he always kept an optimistic outlook on everything, even in your pain you should find a silverlining, it was best for you that you didn't got travelling, if it wasn't you would have gone travelling before you had a kid.
